make_subdir := ./util/Make/ ./Make/

all:
	for subdir in $(make_subdir); do\
		echo "making $$subdir";\
		$(MAKE) -C $$subdir;\
	done;

.PHONY:clean

clean:
	@echo "send clean order..."
	@for subdir in $(make_subdir); do\
		$(MAKE) -C $$subdir clean;\
	done;
	@echo "receive singal of clean over!"
